Transmitter for telephone time systems



(No Model.) v

- 0. W1. RUEHLE.

TRANSMITTER EOE TELEPHONE TIME SYSTEMS.

Patented Aug. 5

FNVENTOR:

ATTORNEYS.

UNITED STATES PATENT @rricn.

' CHARLES IV. RUEHLE, OF DETROIT, MICHIGAN.

TRANSMITTER FOR TELEPHONE TIME SYSTEMS.

SPECIFICATION forming part of Letters Patent No. 303,052, dated August5, 1884.

Application filed February 28, 1884. (No model.)

$0 on whom it may concern:

Be it known that I, CHARLES W. RUEHLE, of Detroit, in the county ofWayne and State of Michigan, have invented a new and ImprovedTime-Transmitter, of which the following is a full, clear, and exactdescription.

My invention relates to apparatus for transmitting time-signals over atelephoneeircuit, or a number of circuits; and it consists in combiningwith a clock-movement a circuit-controlling apparatus capable of sendingelectric signals at intervals of one second, an intermitting device fordiscontinuing the signals at fixed periods, and stopping and startingmechanism for determining the time of sending signals and for limitingtheir duration. Reference is to be had to the accompanying drawings,forming part of this specification, in which similar letters ofreference indicate corresponding parts in both the figures.

Figure lisa front elevation of my improved apparatus with the front'ofthe case removed and parts broken away to show the internalconstruction, Fig. 2 is a partial front elevation, showing the dial andindex.

The casing A contains an ordinary lever clockmovement, 13, whose arbor Gof the third wheel of the movement makes one revolution in two and ahalf minutes. 7 The arbor 0 projects through the front of the casing,and is provided with an index, a, which turns in front of a dial, 2), onthe casing.

011 the arbor O is mounted a notched stopwheel, N, (shown in dottedlines in the drawings;) also, an intermitting wheel, G, carrying twoarms, 0 c, which project beyond its periphery far enough to engage abeveled pin, (1, projecting into the path of the arms 0 c from alever I,pivoted to the frame of the clock-movement. The fourth wheel, M, of theclock-movement is provided with a series of pins, 6, projectinglaterally therefrom at equal distances from each other, and in positionto strike a contact-spring, F, connected with a bindingpost, f,supported by a bar, of insulating material. The pins a strike the springF once each second while the clock is in motion, excepting when thespring is lifted by the screw h in the free end of the lever I. Fourarms, H, J, K, and L, are fixed to a rock-shaft, O, and pressed forwardby a spring, 1, attached to the clock-frame and bearing upward againstthe arm H. The arm H extends toward the side of the casing in positionto be engaged by the foot E on the rod E. This rod extends through abracket, '5, and through the top of the casing A, where it is providedwith a button, 0. A spring, j, resting on the bracket '6 and pressingupward against a collar on the rod E, holds the foot E normally out ofcontact with the lever H. The arm J is capable of engaging a pin, it,projecting from the side of the escapement-lever oi" the clock. The armK engages the notched wheel N, and the arm L, which is beveled 011 itsfree end, is capable of. being engaged by the beveled pin (1, projectingfrom the side of the lever I. The local-battery wires are conneeted withthe binding-posts A A, and the circuit is through the primary wire ofthe induction-coil D, through the frame of the clock andwheel M, springF, and wire Z. The secondary wire of the induction-coil D communicateswith the binding-posts B B, one of which is connected with the line, theother with the ground.

When it is desired to send a time-signal over a telephonecircuit, thebutton 0 is pressed at the beginning of some predetermined minute,bringing the foot E down upon the arm I-I, turning the rock-shaft 0against the pressure of the spring P, simultaneously withdrawing the armJ from the pin of the escapement lever, withdrawing the arm K from thenotch in the wheel N, and moving the beveled end of the arm L past thebeveled pin d, projecting from the lever I, raising the lever andallowing it to fall with the beveled pin (1 in front of the arm L. Theengagement of the beveled pin d with the arm L holds the rock-shaft Oand levers H J K L, connected therewith, in the position in which theywere placed by pushing down the button 0. The operation just describedreleases the escapement-lever so that it is free to vibrate, and theclock-movement acts normally, carrying forward the wheels G M in thedirection indieated by the arrows. The index a will also move at thesame time over the dial Z), to indicate the time. The pins 0 touch thespring F and escape from it once each second, thereby making andbreaking the primary circuit and producing impulses in the secondarywire of the induction-coil which yield audible signals in the telephonesconnected therewith. Then the radial arm 0 reaches and engages thebeveled pin (1 on the lever I, the said lever is raised, bringing thescrew it into contact with the spring F and raising the spring out ofthe path of the pins 0 and holding it in that position for five seconds.At the same time the arm L is released from the pin (1, allowing the armK to ride on the periphery of the wheel N, holding the arm J outot'engagement with the pin 7; on the escapemcnt-lever. At the end offive seconds the pin d drops onto the smooth periphery of the wheel G,allowing the spring F to be again engaged by the pins c for fifty-fiveseconds, when an interruption of five seconds is made by the engagementof the radial arm 0 with the beveled pin (1, and afterward the makes andbreaks otthe circuit occur as before until in the course of therevolution of the shaft G the bent end of the arm K drops into the notchin the wheel N, allowing the arm J to move forward and engage the pin 7-on the escapement-lever, thus stopping the clock.

There are four opportunities for taking the time while the wheel G- ismaking its revolutionone at the beginning of the first, second,

and third minutes, and when it stops at the end of two and one'halfminutes.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1.. The combination, with a clock move ment having a series of pins, 0,on one of its wheels, of a contactspring supported in the path of thesaid pins, and means, substantially as shown and described, for liftingthe said spring out of thcpath of the pins, as and for the purpose setforth.

2. The combination, with a lever clockmovement provided with a pin, is,projecting 4. The combination, with the arms J K, of the arm L, lever I,and beveled pin (2, whereby the arm K is held out of engagemel'it withthe notched stop-wheel Nnntil disengaged by the lifting of the lover I,as described.

5. The combination, with a lever clockmovement, of the pin 7;,projecting from the side of the escapement-lever, the arm J, eapable ofengaging the said pin, and mechanism t'or holding the said arm out ofengage ment with the said pin during a fixed inter val, as specified.

6. The combination, with the rockshai't 0, provided with arms H J K L,and the spring 1?, of the push-rod E, provided with the plate E on itslower end, and the spring J, sub stantially as herein shown anddescribed.

7. The combination,with a clock-movemeut and intermitting mechanism, ofan inductioncoil for transmitting signals over a telephone line, asdescribed.

8. The combination, with the clock-move.

ment, of an auxiliary arbor, (l, intermitting wheel G, stop-wheel N,lover I, provided with beveled pins (Z d and screw 71 and the arms .l KL, as described.

CHARLES \V. HUN! 1 I116.

\Vitnesses:

EDWARD P. Bonner, FREDERICK RUE H LE,

